On Thu, Jan 26, 2017 at 3:56 PM, Mike Gran <spk...@yahoo.com> wrote: > > On Thursday, January 26, 2017 7:31 AM, Rchar <rc...@protonmail.com> wrote: > > >> Is Guile slow or fast, comparing to others? > > Guile is about average compared to the others. But it depends > on the specific task. It is usually not the fastest or slowest.
FWIW, I have C++ code that has bindings both to guile and to python, via cython. The guile bindings were faster than python, which then caused the cython maintainer to enter a nuclear arms race, to improve performance, doing things like caching values in various places to improve performance. But then, one can do the same in guile, and it becomes a game of who can be more clever in optimizing. I do have one complaint: guile has a fairly hefty overhead in entering and exiting: I forget now, and the measurements were done on a circa-2011 PC, but I was getting something like 7K guile enter-exits per second, which limits the speed at which you can cross the C/guile boundary. You can avoid this cost by entering guile and then caching, but this requires some C-coding cleverness that naive users won't do. (I'm currently getting maybe 500K/sec or 1M/sec guile-C crossings, but only if I do this caching trick). --linas
